Combustion-motor.



n. kiwis. consusnon moo.

(Application filed June 2, 189B.)

l No.y 633,878. natemdsept. 2s, |899."

n. MEWES: `c'n'mus'l'uu mmm. (Applicativi:v led June 2, 189B.) (No Nadat.) 2 Sheets--Sheet- 2.

i I interv-begs YH: Nessus PETERS no. moin-umu.. wnmamu. l:4 c.

' 'eUNI'T1315v 'STATES RUDOLF MEwEs, or BERLIN,

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GERMANY, ASSIGNGR WACHTEL dt STOLTZ,

or sAMErInoE- loo ,wreusrlcN-fMoron.

srneirr'onrron forming part 'of meters Patent No .-e3'e,e7e, dated september 2e, ieee.

' Application filed June 2l l898. Serial No. 682,395.- (No model.) Y

To LM whom, tjnutgcofwer/t: u VBe it known that I, 'RUDOLF MEWES, a 'subjectof the German Emperor, residing at Berlin, in the German Empire, have invented. certain new and useful'lmprovem'ents in Combustion-Motors, of which the following'is a speciiication. Y o

This invention relates to a combustion-mo-l tor in which the gaseous or sprayed fuel, or a x o mixture of gaseous, liquefied, sprayed, or pul-V verized fuel, or the air employed for feeding in pulverized solid fuel when such is used is compressed vto such an extent'as to heat it to a temperature above the ignition tempera.- ture' and thereupon forced under pressure either into the cylinder,which is supplied with compressed air at a lower temperature, or into a vessel in communication therewith and servingas a combustion-chamber. By this ec means the following advantageas compared with combustion-motors of the known lkind is obtained: the air conducted to the working' cylinder to support combustion may be cold.' and the temperature during the process vmay be kept as low as is permissible accordingito the constructional parts, packing, dac., enr-f' -p'loyed in the machine.

The engine or-'rnotorr may be so arranged' that it produces itself the heat-ed air required 3c for its operation. If the compressed air serving to support combustion and conducted to the working cylinder is obtained by compression, then the heat produced by, such ,compression, contrary to what takes place in ma 5 chines in 'which the working cylinder has to be cooled, may be employed for heating the working cylinder from without. lf, however, I the said utilization of the'heat produced by f compression is not desired, other means of \4gpcooling this air may be employed. In either case thecompressed air conveyed to the working cylinder is lower in temperature than the combustible mixture, which, as above stated,

is heated to above the combustion temperat'ure outside'the working cylinder and conducted into the vsaid compressedaii.

In' theA accompanying drawings two constructional formsof the improved comlousfV tion-motor are illustrated in Figures 1 and 2,.

5o respectively,

In lthe constructional form illustrated in Fig..l, g is the working cylinder; (t, an aircompress'or; d, a water-pump, and c a compressed-air vessel which is Iilledwith compressed air prior to ,starting the machine.

While the engine or motor is running the compressor a is operated by ineansol the worki'ng Mpiston 'of the cylinder g, and the compressed air is forced into the compressed air Yesselc through the'pipe h, whence itipasses through the pipe'e to the working cylinder g. This may take place directly; but it is conducive to higher efficiency if the compressed air is rst of all allowed to pass around the cylinder g, for which purpose the latter may be provided with the jacket f. From this lat- `t'er the compressed air is'conducted through Y the pipe h and through the suitably-governed valve e to the cylinder g. During orl subse quent to the admission of the compressed air to the cylinder g the fuel is introduced ina gaseous, liquid, or solid form and under a pressure which is higher than the pressure of gthe compressed air.

In' the'construrctional form of the engine or motor illustrated in the drawings it is assumed that burning gas is to be introduced 'into the compressed air. The gas is in this oase conducted to the pump mthrough the` pipe n. In the pump m the gas is so strongly l compressed as t'o thereby become heated above i the combustion temperature. From the pump fm, the highly-compressed gas passes, preferably by way of a pressure vessel o, through the pipe q, which is provided with a cock p, into the cylinder g, through thenozzle r, in yfront of which may be arranged gauze t. Moreover, in front of the mouth of the nozzle r I may arrange a device for further heating the gas forced through. In the drawings this device is 'shown as an electric heating-spiral s. As the gas has already been heated te above the ignition temperature by compression in the pump m rand as in addition to this the temperature due to the compression may beincr'eased by means of the superheating device the gas burns directly upon entering the cylinder g without vany necessity for a special ignition device. y u

The pumpmmay be operated in any desired :n'iann'er` InV the constructional form ICO SHQWH in Figuithe Ycompressedair mOlOZ Y 7. The combination with the working eyljeoting into said air, compressed fuel of zu index` and piston, of an air-compressor, means higher temperature than the combustion temfor compressing fuel to produce atemperature pex'atnue.v l higher than the combustion temperature, and In Wit-ness whereof I have hereuntosgned 5 connections for leading the air and fuel to my name, this 18th day of'May, 1898, in the 15 the cylinder. presence of two subscribing Witnesses.

8. The combination with the working oyl- RUDOLF MEWES. inder and piston, of means for compressingv Vitnesses: ail-*aud leading it to the cylinder in a com- C. H. DAY,

Io paratively cool condition, and means for in- 1 HENRY HASPER. 

